Atypical P. vivax morphologies found in sample CAM-185. Slides were prepared by the blood distension technique, stained by the Giemsa method, and visualized at 100× magnification under an optical microscope. (A) basket-form trophozoite; (B–C) gametocytes in oval red blood cells; (D) band-form gametocyte; (E) schizont in oval red blood cell; (F) simultaneous infection of schizont (with about 20 merozoites) and gametocyte in a single red blood cell. Bar = 10 μm.